Throughout 2024, the Center for Universal Education (CUE) co-led a costing lab with the Colombian social enterprise aeioTU. This lab consisted of a number of workshops led by CUE in which the team at aeioTU strengthened their knowledge and understanding of costing and cost analysis. Specifically, the team selected a program about which to conduct a costing exercise, conducted a mapping exercise to identify key stakeholders relevant to the project and relevant to costing, identified and refined their key costing goals and questions, participated in a training on the use of the Childhood Cost Calculator (C3), and conducted cost entry and analysis. This report shares the experience of the costing lab and the data that resulted from the cost calculations.